螺旋粉虱成虫消化系统的形态学与组织学研究  

Morphological and Histological Studies on the Digestive System of the Adult Spiraling Whitefly,Aleurodicus dispersus Russell(Homoptera:Aleyrodidae)

作　　者：周乃珍[1] 倪旻[1] 胡好远[1] 符悦冠[2] 张盛周[1] 

机构地区：[1]安徽师范大学生命科学学院,生物环境与生态安全省级重点实验室,安徽芜湖241000 [2]中国热带农业科学院环境与植物保护研究所,农业部热带农林有害生物入侵监测与控制重点开放实验室,海南省热带农业有害生物检测监控重点实验室,海南儋州571737

出　　处：《热带作物学报》2011年第7期1342-1346,共5页Chinese Journal of Tropical Crops

基　　金：行业科技项目入侵昆虫综合防控技术研究与示范推广(No.201103026);公益性行业(农业)科研专项(No.200803023);“动物生物学”安徽师范大学优秀学术团队基金;生物环境与生态安全省级重点实验室及安徽省重要生物资源保护与利用重点实验室建设基金(2007-10)

摘　　要：应用解剖学和组织学方法研究了螺旋粉虱(Aleurodicus dispersus Russell)成虫消化系统的形态和组织结构。结果显示,螺旋粉虱成虫消化系统由前肠、滤室、中肠、后肠、瓶形孔和一对唾液腺组成。前肠部分主要是食道;中肠包括胃和肠道;后肠分为回肠、结肠和直肠,其中直肠前部有一段膨大的直肠囊;一对唾液腺并行分布在食管下神经节的两侧,呈肾形。消化道管壁从腔内向外依次由黏膜层、肌层和浆膜层等3层结构组成。PAS染色在中肠的胃和肠道中阳性反应最强烈,其次是食道,而在唾液腺和后肠中基本呈阴性;PAS染色阳性部位位于黏膜层,胃和肠道腔内内容物也有阳性反应,而食道腔内无阳性物质。AB染色在后肠中阳性反应最明显,其它部位均呈阴性;AB染色阳性部位位于黏膜层,而肠腔有絮状弱阳性物质。碱性磷酸酶在唾液腺和后肠染色呈阳性,位于整个唾液腺、后肠的黏膜层和肌层;而前肠和中肠染色呈弱阳性,位于黏膜层。The morphological and histological structure of the digestive system of the adult Aleurodicus dispersus Russell was investigated using anatomical and histological methods.The results showed that the digestive system was consisted of foregut,filter chamber,midgut,hindgut,vasiform orifice and a pair of salivary glands.The main part of the foregut was esophagus;the midgut was composed of stomach and intestine;while the hindgut could be divided into ileum,colon and rectum with an intumescent rectal sac in the anterior segment of the rectum.A pair of kidney-shaped salivary glands was found on each side of the subesophageal ganglia.The wall of the alimentary canal of Aleurodicus dispersus comprised three layers from inside to outside： mucosa,muscularis and serosa.The strongest positive reaction of periodic acid Schiff staining（PAS）was observed in the stomach,and a relatively strong one was observed the intestine of the midgut,and a relatively weak one was observed in the esophagus.No positive reaction was detected in the salivary glands and the hindgut.The PAS positive reaction located in the mucosa,the cavity of the stomach and the intestine,while no PAS positive material was observed in the esophagus cavity.A significantly strong positive reaction of alcian blue staining（AB）was observed in the hindgut,while no positive AB reaction was observed in the other parts of the digestive system.The AB positive reaction located in the mucosa,and there were also weakly AB positive floccules located in the hindgut cavity.There was significantly strong alkaline phosphatase reaction in the whole salivary glands,the mucosa and the muscularis of the hindgut,while the alkaline phosphatase reaction was weaker in the mucosa of the foregut and the midgut.

关 键 词：螺旋粉虱 消化系统 形态学 组织学 

分 类 号：S433.4[农业科学—农业昆虫与害虫防治]